Add dump() routines for debugging assistance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37314 91177308-0d34-0410-b5e6-96231b3b80d8

lib/VMCore/Dominators.cpp

@@ -21,6 +21,7 @@
 #include "llvm/ADT/SetOperations.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/Instructions.h"
+#include "llvm/Support/Streams.h"
 #include <algorithm>
 using namespace llvm;
 
@@ -363,6 +364,10 @@ void DominatorTreeBase::print(std::ostream &o, const Module* ) const {
   PrintDomTree(getRootNode(), o, 1);
 }
 
+void DominatorTreeBase::dump() {
+  print (llvm::cerr);
+}
+
 bool DominatorTree::runOnFunction(Function &F) {
   reset();     // Reset from the last time we were run...
   Roots.push_back(&F.getEntryBlock());
@@ -476,6 +481,11 @@ void DominanceFrontierBase::print(std::ostream &o, const Module* ) const {
   }
 }
 
+void DominanceFrontierBase::dump() {
+  print (llvm::cerr);
+}
+
+
 //===----------------------------------------------------------------------===//
 // ETOccurrence Implementation
 //===----------------------------------------------------------------------===//
@@ -1019,3 +1029,7 @@ void ETForestBase::print(std::ostream &o, const Module *) const {
   }
   o << "\n";
 }
+
+void ETForestBase::dump() {
+  print (llvm::cerr);
+}